- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Has anybody tried to null the offset voltage of PGA in PSoC5 LP? I am working with very small signal and need to take care of PGA offset voltage. I tried to check offset voltage,.. which comes in the range of 9-12 mV for PGA (Attached project )
Please share the compensation circuit if anybody is having tried it.
Thanks in Advance!!
Solved! Go to Solution.
- Labels:
-
PSoC 5LP
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
It seems you need to use ADC_SetOffset () and, if desired, ADC_SetScaledGain ()
Slightly theory:
AN68403 PSoC3 and PSoC 5LP Analog Signal Chain Calibration
It remains unaccounted for:
Input offset voltage PGA = ±30 μV/°C * gain
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
It seems you need to use ADC_SetOffset () and, if desired, ADC_SetScaledGain ()
Slightly theory:
AN68403 PSoC3 and PSoC 5LP Analog Signal Chain Calibration
It remains unaccounted for:
Input offset voltage PGA = ±30 μV/°C * gain
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
Thanks Pavloven and Odissey1 for the information. Its really useful.